80213904 has 30 divisors (see below), whose sum is σ = 224487926. Its totient is φ = 26737920.

The previous prime is 80213893. The next prime is 80213909. The reversal of 80213904 is 40931208.

It can be written as a sum of positive squares in only one way, i.e., 76527504 + 3686400 = 8748^2 + 1920^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (80213909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278377 + ... + 278664.

Almost surely, 2^80213904 is an apocalyptic number.

It is an amenable number.

80213904 is an abundant number, since it is smaller than the sum of its proper divisors (144274022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80213904 is a wasteful number, since it uses less digits than its factorization.

80213904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557055 (or 557046 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 80213904 is about 8956.2215247279. The cubic root of 80213904 is about 431.2706314011.

It can be divided in two parts, 802 and 13904, that added together give a triangular number (14706 = T₁₇₁).

The spelling of 80213904 in words is "eighty million, two hundred thirteen thousand, nine hundred four".